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needhelpfastplease
Group Title
A student pushes a 40N block across the floor for a distance of 10 m. How much work was applied to move the block?
A.
4 J
B.
40 J
C.
400 J
D.
4000 J
 7 months ago
 7 months ago
needhelpfastplease Group Title
A student pushes a 40N block across the floor for a distance of 10 m. How much work was applied to move the block? A. 4 J B. 40 J C. 400 J D. 4000 J
 7 months ago
 7 months ago

This Question is Closed

timaashorty Group TitleBest ResponseYou've already chosen the best response.1
I'm not 100% sure about this one but I would go with C.
 7 months ago

kym02 Group TitleBest ResponseYou've already chosen the best response.1
I think it's also C because work=force x distance.
 7 months ago

theEric Group TitleBest ResponseYou've already chosen the best response.0
Right! Because the force and displacement are in the same exact direction, you can use that formula.
 7 months ago

needhelpfastplease Group TitleBest ResponseYou've already chosen the best response.1
thanks everyone! You all are very helpful!
 7 months ago

theEric Group TitleBest ResponseYou've already chosen the best response.0
:) You're welcome! More generally, \(\large W=F\dot\ d\dot\ \cos(\theta)\) where \(\theta\) is the angle between force and displacement. You can see that, when they're in the same direction, \(\theta=0\) \(\implies W=F\dot\ d\dot\ \cos(0)=F\dot\ d\dot\ 1=F\dot\ d\)
 7 months ago
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